Mattress arrived and was it was the wrong size. Wayfair did an amazing job correcting the mistake and the correct mattress arrived within 1 week. The mattress unpackaged and almost immediately filled out the the full size. We let it sit for a few days and first night was so comfortable. Aches and pains in the morning were completely gone. Mattress feels secure and sides do not cave in. Can't feel my partner move throughout the night. Would highly recommend this mattress for the cost.